Datasheet Texas Instruments BQ20Z80DBTR-V102G4

Manufacturer	Texas Instruments
Series	BQ20Z80-V102
Part Number	BQ20Z80DBTR-V102G4

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Design Kits & Evaluation Modules

• Evaluation Modules & Boards: BQTESTER
  Single Channel Tester
  Lifecycle Status: Active (Recommended for new designs)
  
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• Evaluation Modules & Boards: BQMTESTER
  BQMTESTER Multi Channel Test and Program Board
  Lifecycle Status: Active (Recommended for new designs)
  
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Application Notes

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  Cell-type Specific Settings for Cell Imbalance Permanent Failure Thresholds
  PDF, 100 Kb, File published: Sep 28, 2007
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  Evaluation 6: Using SHA-1 in bq20zxx Family of Gas Gauges
  PDF, 107 Kb, File published: Nov 19, 2005
  The bq20zxx Impedance Trackв„ў family of gas gauge ICs includes a highly sophisticated authentication algorithm, known as SHA-1, which requires little setup and development time and provides an effective, secure battery design.
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  Production 2: Data Flash Programming/Calibrating the bq20z80 Gas Gauges (Rev. B) (Rev. B)
  PDF, 235 Kb, Revision: B, File published: Jan 12, 2010
  This application report presents a strategy for high-speed, economical calibration and data flash programming of the bq20z80 advanced gas gauge chipset family. VB6 code examples are provided, along with step-by-step instructions for preparing a golden battery pack.
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  Five to Eight-Series-Cell bq20z80 Fuel Gauge
  PDF, 997 Kb, File published: Sep 10, 2007
  Battery fuel gauging applications requiring five- to eight-series cells may not have an obvious solution. While fully functional solutions are anticipated in the future, currently available chipsets tend to address end-products where four-series cells are the maximum. This report presents an inexpensive solution, using the bq20z80 fuel gauge.
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  Impedance Track(TM) Gas Gauge for Novices
  PDF, 482 Kb, File published: Jan 30, 2006
  This application report introduces the bq20z80 Impedance Trackв„ў and bq29312A chipset gas gauge solution.
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  Operating Fuel Gauge bq20z7x/8x/9x and SMBus-Like bq24745/47/65 Chargers
  PDF, 132 Kb, File published: Oct 6, 2009
  The smart charger bq24747/765 is a high-efficiency, synchronous battery charger with an integrated input current comparator. This charger provides low component count for space constrained, multichemistry battery charging applications. SMBus input current, charge current, and input current digital-to-analog converters allow for very high regulation accuracies that the system power management micr
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  Cell Balancing Using the bq20zxx (Rev. C)
  PDF, 208 Kb, Revision: C, File published: Jan 12, 2011
  This application report discusses three types of cell imbalances that are observed in a battery pack withserially connected cells.
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  Design 3: Configuring the bq20z80 Data Flash
  PDF, 1.2 Mb, File published: Nov 10, 2005
  This application report presents the data flash constants for configuring the bq20z80 Smart Battery System (SBS)-compliant gas gauge device. A brief explanation of each option for the various features is included.
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  Configuring the bq20z80 Data Flash
  PDF, 2.8 Mb, File published: Jun 15, 2006
  How to Configure the bq20z80
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  bq20z80 Application Book
  PDF, 7.3 Mb, File published: Jun 15, 2006
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  Data Flash Programming Using the EV Software
  PDF, 40 Kb, File published: Jun 15, 2006
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  bq20Z80-v101 to bq20z80-V102 Change List
  PDF, 48 Kb, File published: Nov 17, 2005
  This document describes the design considerations required to change a bq20z80-V101 design to a bq20z80-V102. Find the latest ordering information and data sheet on the TI Web site.
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  bq20z80 to bq20z80-V101 Change List
  PDF, 57 Kb, File published: Aug 17, 2005
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  Updating Firmware With the bq20zxx and EVM (Rev. B)
  PDF, 54 Kb, Revision: B, File published: Nov 7, 2006
  This application report presents the steps necessary to update the bq20z80 firmware and the EVM.
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  Exploring the bq20z80 Impedance Track Evaluation Kit (Rev. A)
  PDF, 1.1 Mb, Revision: A, File published: Jun 14, 2006
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  bq20z80 EVM Data Flash Settings for Num of Serial Cells/Pack Cap (Rev. B)
  PDF, 1.1 Mb, Revision: B, File published: Nov 6, 2006
  This application report describes the configuration changes in the data flash constants in the Texas Instruments bq20z80 Gas Gauge Evaluation Software for a variety of battery-pack configurations.
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  Pack Assembly and the bq20zxx (Rev. B)
  PDF, 35 Kb, Revision: B, File published: Nov 7, 2006
  This application report describes a recommended assembly sequence for the bq20z80-based battery pack. This procedure results in the most time-efficient setup of the battery pack. Included are steps for connecting a 4-series cell battery to the bq20z80EVM-001.
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  Thermistor Coefficient Calculator for TI Advanced Fuel Gauges
  PDF, 58 Kb, File published: Oct 4, 2006
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  Evaluation 7: Preparing Optimized Data Flash Constants (Rev. B)
  PDF, 29 Kb, Revision: B, File published: Dec 4, 2006
  Impedance Track в„ў technology allows bq20z80 fuel gauge ICs to automatically acquire and maintain parameters for battery modeling needed for continuous fuel-gauge accuracy, regardless of battery model or manufacturer. This application report discusses how to prepare optimized default flash constants for specific battery types.
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  Design 2: Avoiding ESD and EMI Problems in bq20zxx Battery Pack Electronics
  PDF, 113 Kb, File published: Nov 11, 2005
  In an increasingly wireless world, electrostatic discharge and electromagnetic interference are both potential issues for portable battery packs. This application report discusses the causes of ESD and EMI issues in battery pack designs and offers solutions for mitigation.
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  Support of Multiple Chemistries
  PDF, 86 Kb, File published: Jun 15, 2006
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  bq20z80-V101 Temporary SBS.FullChargeCapacity() Invalid Data
  PDF, 33 Kb, File published: Sep 10, 2005
  Temporary invalid data in the SBS.FullChargeCapacity() register of the bq20z80-V1.01 could occur under rare conditions. This application report describes those conditions and the solutions.
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  Design 4: Support of Multiple Li-Ion Chemistries w/Impedance Track(TM) Gas Gauge (Rev. R)
  PDF, 87 Kb, Revision: R, File published: Oct 15, 2009
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  Evaluation 1: Feature Set Comparison Between bq2084 and bq20z80
  PDF, 147 Kb, File published: Nov 29, 2005
  The bq20z80 differs from the bq2084 in several areas, although all bq2084 features are available in the bq20z80. Both devices support SBS1.1 with SMBus communications, but the bq20z80 has many extended SBS commands to enable additional features. The array of bq2084 safety features is expanded in the bq20z80, with a wider range of configuration options. The bq20z80 offers greater flexibility in use
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  Battery Pack Production Flow With bq20zXX
  PDF, 62 Kb, File published: Aug 2, 2006
  This application report presents a battery pack production flow diagram for bq20zXX devices and discusses each step in detail.
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  Production Flow With bq20z80 Gas Gauges
  PDF, 41 Kb, File published: Jun 15, 2006
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  Quick-Start Guide for bq20zxx Family Gas Gauges (Rev. A)
  PDF, 4.4 Mb, Revision: A, File published: Sep 4, 2007
  The intent of this application report is to give the user an overview of the design process, how to use the evaluation module and software, and to provide helpful troubleshooting techniques.This document begins with setting up the evaluation module and working with bq Evaluation Software. Several tips for troubleshooting the software connection are included, as well as navigation and what to l
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  Evaluation 3: Theory/Implementation Impedance Track Battery Fuel-Gauging Algo (Rev. B)
  PDF, 101 Kb, Revision: B, File published: Dec 20, 2006
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  bq20z80 Printed Circuit Board Layout Guide
  PDF, 198 Kb, File published: Jun 16, 2006
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  Design 1: bq20z80 and bq2084 Gas Gauge Circuit Design
  PDF, 1.1 Mb, File published: Nov 14, 2005
  Each component in the bq20z80 and bq2084 chipset reference designs is explained in this application report. Design tradeoffs and alternative circuits are provided, where appropriate.
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  Fast Cell Balancing Using External MOSFET (Rev. A)
  PDF, 153 Kb, Revision: A, File published: Jan 26, 2009
  The need for cell balancing comes from the fact that cell-to-cell differences in self-discharge, capacity, and impedance can lead to different charge states among the cells. However, the charger terminates the charge based on the summed voltage only, which may leave some cells undercharged and others overcharged. To remedy this imbalance and to achieve the goal of having all cells reaching 100% st

Model Line

Manufacturer's Classification

• Semiconductors > Power Management > Battery Management Products > Battery Fuel Gauge

Other Names:

BQ20Z80DBTRV102G4, BQ20Z80DBTR V102G4